"Believe me, this was not easy to keep quiet. BAM!!! SURPRISE!!!! Come take this journey with your friendly neighborhood singing cashier! The Voice airs September 25. #Season13," Holliday posted to Facebook this week.

Holliday is under contract not to disclose how far he has advanced on the show, which slowly whittles down the contestants until a winner is named.

Holliday appeared on ABC's 'Good Morning America' shortly after the video of him singing while manning the cash register at a Dollar General Store went viral, rolling off over 600,000 views. The invite from Maxwell to sing with him came shortly thereafter.

Holliday has recorded an album of new music at Bob Baldori's Lansing studio. Baldori told the Lansing State Journal he is currently acting as his manager.

"(Lucas) is a major talent, and it's been great working with him, I have high hopes for him." Baldori was quoted as saying.

Holliday has also been appearing locally at venues in Michigan. Here's a video he posted of him performing at Bull Frog's in Detroit.